Divisions of the NS 1

Central Nervous System(CNS)- contains the brain and spinal cord



Peripheral Nervous System(PNS)- nerves connecting CNS to muscles and organs







Somatic Nervous System- voluntary and conscious,sensory nerve





Autonomic System- involuntary and unconscious, controls heartbeat, blood pressure, respiration, and perspiration



Sympathetic Nervous System- fight or flight response, increases heartrate, and blood pressure, releases adrenaline and nonadrenaline






Parasympathetic Nervous System- rest and digest system, lowers heartbeat, breathing rate, and blood pressure